Home / 190,059.06-262,279.98-105,180.78

Finding the Fourth Proportional to 190,059.06, 262,279.98 and 105,180.78

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Solution

The fourth proportional to 190,059.06, 262,279.98 and 105,180.78 is: 145,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,059.06 : 262,279.98 = 105,180.78 : x
  2. Step 2: Convert to fraction form
    190,059.06/262,279.98 = 105,180.78/x
  3. Step 3: Cross multiply
    190,059.06x = 262,279.98 × 105,180.78
  4. Step 4: Simplify right side
    190,059.06x = 27,586,812,874.78
  5. Step 5: Solve for x
    x = 27,586,812,874.78/190,059.06
  6. Step 6: Final answer
    x = 145,148.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.